Some of the characters in the series include:
- Mike is the series' namesake.
- Evie is Mike's sister voiced by Erin Pitt.
- Galahad is Mike's horse voiced by Frank Welker.
- Sparkie is a fire-breathing dragon voiced by Martin Roach.
- Squirt is a water-squirting dragon voiced by Andrew Sabiston.
- Mr. Cuddles is Evie's pet frog and best friend. Voiced by Frank Welker.
- Queen Martha is Mike and Evie's mother voiced by Alyson Court.
- She is "warm, wise, and caring"
- Fernando is a resident bard, the storyteller of the show, voiced by Jake Beale.
- his witty ditties begin and end each episode on a humorous note
- Trollee is a troll voiced by Samantha Reynolds.
- Sir Super, Evie's favourite comic character who Mike wants to battle.
- Marion and Robin, Marion Robin is Young Children Voiced By Alina Kukushkina Isabella Blake Thomas
- Dr.Johson voiced by Mr Smith